I don't know if this is valid or not, but I've heard from multiple sources (albeit on the internet) that a healthy immune system stands a good chance of counteracting the spike proteins, so I'd focus on natural supplements and really healthy eating for yourself and the kids.

I'm so, so sorry for your situation. I know feelings of betrayal by someone you once thought you could trust (at least maybe for certain things) can be emotionally very difficult, but the sooner you can put all your focus on taking care of yourself and the kids, the better off you'll be.